[cisco-voip] Call Manager and Polycom HDX8000 Integration

Fri May 30 00:22:43 EDT 2014

All,

I am trying to add a Polycom HDX 8000 as a third party sip phone in call manager.

I am having issues completing outbound calls from the Polycom. This is caused by overlapping patterns. Because of the overlapping patterns CCM sends a SUBSCRIBE -KPML EVENTS message notifying the Polycom that there is a 5 second interdigit timeout. The Polycom returns a 481 Call Leg/Transaction Does Not Exist because the tag is changed to a new call ID and the original call ID is put in the EVENTS field.

Anyone have a solution other than putting a CUBE between the two or adding a SIP normalization Script?

Thanks for any input.

See below for the call flow.

INVITE sip:14197060259 at 10.30.50.5 SIP/2.0
Via: SIP/2.0/TCP 10.15.30.58:5060;branch=z9hG4bK1494020299-3418
Max-Forwards: 70
From: 15257 <sip:15257 at 10.30.50.5>;tag=plcm_1493982123-3418;epid=821409418041CG
To: <sip:14197060259 at 10.30.50.5>
Call-ID: 1493981544-3418
CSeq: 2 INVITE
Session-Expires: 90
Supported: timer
Contact: 15257 <sip:15257 at 10.15.30.58:5060;transport=tcp>;proxy=replace;+sip.instance="<urn:uuid:40a015de-8a58-546e-8cd1-20f4e581c51c>"
Content-Type: application/sdp
Authorization: Digest username="BLASRExec2",realm="ccmsipline",nonce="vcUSTHHeVDi9Sj4CcHij6jqxzswroHw5",uri="sip:14197060259 at 10.30.50.5",response="8d2b4280bc610e0463f97c561a549d5c",algorithm=MD5
User-Agent:PolycomHDX8000/3.1.3
Allow-Events: kpml
Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,REGISTER,UPDATE,SUBSCRIBE,INFO,PRACK,COMET,MESSAGE
Content-Length: 1358

SIP/2.0 100 Trying
Via: SIP/2.0/TCP 10.15.30.58:5060;branch=z9hG4bK1494020299-3418
From: 15257 <sip:15257 at 10.30.50.5>;tag=plcm_1493982123-3418;epid=821409418041CG
To: <sip:14197060259 at 10.30.50.5>
Date: Thu, 29 May 2014 21:09:44 GMT
Call-ID: 1493981544-3418
CSeq: 2 INVITE
Allow-Events: presence
Content-Length: 0

SUBSCRIBE sip:15257 at 10.15.30.58:5060 SIP/2.0
Via: SIP/2.0/TCP 10.30.50.5:5060;branch=z9hG4bK43d3529507a
From: <sip:14197060259 at 10.30.50.5>;tag=1580949473
To: <sip:15257 at 10.15.30.58>
Call-ID: 8d546180-3871a218-3f5-5321e0a at 10.30.50.5
CSeq: 101 SUBSCRIBE
Date: Thu, 29 May 2014 21:09:44 GMT
User-Agent: Cisco-CUCM9.1
Event: kpml; call-id=1493981544-3418; from-tag=plcm_1493982123-3418
Expires: 7200
Contact: <sip:14197060259 at 10.30.50.5:5060;transport=tcp>
Accept: application/kpml-response+xml
Max-Forwards: 70
Content-Type: application/kpml-request+xml
Content-Length: 422

<?xml version="1.0" encoding="UTF-8" ?>
<kpml-request xmlns="urn:ietf:params:xml:ns:kpml-request" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:ietf:params:xml:ns:kpml-request kpml-request.xsd" version="1.0">

  <pattern criticaldigittimer="1000" extradigittimer="500" interdigittimer="5000" persist="persist">
    <regex tag="Backspace OK">[x#*]|bs</regex>
  </pattern>

</kpml-request>

SIP/2.0 481 Call Leg/Transaction Does Not Exist
Via: SIP/2.0/TCP 10.30.50.5:5060;branch=z9hG4bK43d3529507a
From: <sip:14197060259 at 10.30.50.5>;tag=1580949473
To: <sip:15257 at 10.15.30.58>;tag=plcm_1495051207-3418
Call-ID: 8d546180-3871a218-3f5-5321e0a at 10.30.50.5
CSeq: 101 SUBSCRIBE
Contact: 15257 <sip:15257 at 10.15.30.58:5060;transport=tcp>;proxy=replace;+sip.instance="<urn:uuid:40a015de-8a58-546e-8cd1-20f4e581c51c>"
User-Agent:PolycomHDX8000/3.1.3
Allow-Events: kpml
Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,REGISTER,UPDATE,SUBSCRIBE,INFO,PRACK,COMET,MESSAGE
Content-Length: 0

CANCEL sip:14197060259 at 10.30.50.5 SIP/2.0
Via: SIP/2.0/TCP 10.15.30.58:5060;branch=z9hG4bK1494020299-3418
Max-Forwards: 70
From: 15257 <sip:15257 at 10.30.50.5>;tag=plcm_1493982123-3418;epid=821409418041CG
To: <sip:14197060259 at 10.30.50.5>
Call-ID: 1493981544-3418
CSeq: 2 CANCEL
Authorization: Digest username="BLASRExec2",realm="ccmsipline",nonce="vcUSTHHeVDi9Sj4CcHij6jqxzswroHw5",uri="sip:14197060259 at 10.30.50.5",response="65a1fb46b8190bcb08f4125d09be067f",algorithm=MD5
User-Agent:PolycomHDX8000/3.1.3
Allow-Events: kpml
Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,REGISTER,UPDATE,SUBSCRIBE,INFO,PRACK,COMET,MESSAGE
Content-Length: 0

Tommy Schlotterer | Systems Engineer
CCNA, CCNA Voice
48325 Alpha Dr. Ste. 150
Wixom, MI 48393
p 248.468.0710
e tschlotterer at netechcorp.com<mailto:tschlotterer at netechcorp.com>
w netechcorp.com<http://netechcorp.com/>
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